DF2398F20V Renesas Electronics America, DF2398F20V Datasheet - Page 109
DF2398F20V
Manufacturer Part Number
DF2398F20V
Description
IC H8S/2300 MCU FLASH 128QFP
Manufacturer
Renesas Electronics America
Series
H8® H8S/2300r
Specifications of DF2398F20V
Core Processor
H8S/2000
Core Size
16-Bit
Speed
20MHz
Connectivity
SCI, SmartCard
Peripherals
DMA, POR, PWM, WDT
Number Of I /o
87
Program Memory Size
256KB (256K x 8)
Program Memory Type
FLASH
Ram Size
8K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b; D/A 2x8b
Oscillator Type
Internal
Operating Temperature
-20°C ~ 75°C
Package / Case
128-QFP
For Use With
YR0K42378FC000BA - KIT EVAL FOR H8S/2378
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Available stocks
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Price
Company:
Part Number:
DF2398F20V
Manufacturer:
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Quantity:
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Part Number:
DF2398F20V
Manufacturer:
Renesas Electronics America
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4.7
When accessing word data or longword data, the H8S/2357 Group assumes that the lowest address bit is 0. The stack
should always be accessed by word transfer instruction or longword transfer instruction, and the value of the stack pointer
(SP, ER7) should always be kept even. Use the following instructions to save registers:
Use the following instructions to restore registers:
Setting SP to an odd value may lead to a malfunction. Figure 4-5 shows an example of what happens when the SP value is
odd.
PUSH.W
PUSH.L
POP.W
POP.L
Notes on Use of the Stack
Rn
ERn
Rn
ERn
SP
CCR: Condition code register
PC:
R1L: General register R1L
SP:
Note: This diagram illustrates an example in which the interrupt control mode
Legend:
SP set to H'FFFEFF
(or MOV.W Rn, @-SP)
(or MOV.L ERn, @-SP)
(or MOV.W @SP+, Rn)
(or MOV.L @SP+, ERn)
Stack pointer
Program counter
is 0, in advanced mode.
TRAPA instruction executed
Figure 4-5 Operation when SP Value is Odd
SP
Data saved above SP
CCR
PC
MOV.B R1L, @–ER7
SP
Contents of CCR lost
R1L
PC
Rev.6.00 Oct.28.2004 page 79 of 1016
H'FFFEFA
H'FFFEFB
H'FFFEFC
H'FFFEFD
H'FFFEFF
REJ09B0138-0600H
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